* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  line-height: 1.5;
  font-family: Arial, sans-serif;
}

ol,
ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.section {
  margin: 20px;
  line-height: 1.6;
}

header h1 {
  font-size: 2em;
  margin-bottom: 0.5em;
}

.description {
  color: #555;
  margin-bottom: 1.5em;
}
